Description: Fully compliant with the ExpressCard Specification 1.0. Full single-wire (or x1) PCI Express throughput This product supports 34MM/54MM wide Express Card slot Meets the Universal Serial Bus 3.0 specification 1.0 revision. Meets the Xhci (Extensible Host Controller Interface) specification revision 1.0. Supports multiple USB3.0, USB 2.0 and USB 1.1 simultaneous operation of the device Support USB data transmission rate of 1.5/12/480/5000 Mbps Expands two external USB3.0 ultra-fast system ports Meet the USB3.0 5 V/900mA output power level. Hot-swap feature, you can connect/disconnect without shutting down the system power device Driver supports Microsoft Windows 2000, XP, Vista and 7 operating systems Specification: Material: metal shell Size: 75*33*5mm Package Includes: 1x Expansion Card 1x CD